Author: Bret A Nicks, MD; Chief Editor: Rick Kulkarni, MD
An estimated more than 800 million travelers worldwide cross international boundaries each year. However, whether associated with tourism, humanitarian efforts, globalization of industry, or migrant workers, studies suggest only a small number seek pre-travel health advice. In addition, the composition of those traveling continues to become more diverse and medically complex, creating a vastly different perspective on travel-associated medical concerns, preparations, and required medical knowledge.
With these decreasing boundaries and increasing activities, travel medicine has become a rapidly evolving field of medicine. Classically, travel medicine focused on individuals traveling to developing countries with prevention and treatment of malaria, traveler's diarrhea, and general vaccinations as its primary goal. Travel medici